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                        8271 NWAYS ETHERNET LAN SWITCH
ATM OC-3C MODULE
QUICK REFERENCE GUIDE
5 To communicate with an ATM Switch, the communi-
Pre-Configuration Checklist
cation settings on the ATM Module and ATM Switch 
must be compatible. Find the following ATM Switch 
Before configuring the ATM OC-3c Module, com-
settings and enter them below:
plete the following steps:
1 Install the ATM Module — Installation instruc-
Signalling Mode
tions are provided in “Installing and Setting Up the 
Module” in the ATM Module Us
                    
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                        2 8271 NWAYS ETHERNET LAN SWITCH ATM OC-3C MODULE QUICK REFERENCE GUIDE d Ensure that the ATM Module and ATM Switch are  Configuring the ATM Module using the same ILMI VCC. The standard ILMI VCC  is VPI = 0, VCI=16. 1 Access the Local Management Screens e Refer to “Accessing Management Features” in the If you do not need to make any changes, select  ATM Module User’s guide for instructions. the CANCEL button. Select the OK button to  apply the changes and automatically reset the  2 Ensure that t
                    
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                        Q Q Configuring the ATM Module 3 c Ensure that the Port ID is set to the ATM port g If the default VLAN’s LEC State field displays a  number. The ATM port numbers are as follows: value other than Active, and the Last LEC Failure  Reason shows a value other than None, an error  Port  on an IBM 8271 Nways Ethernet LAN  13 has arisen; see “Troubleshooting”. Switch Model 612 and IBM 8271 Nways Ether- net LAN Switch Model 712 Port 25 on an IBM 8271 Nways Ethernet LAN  Switch Model 624 and IBM 8271 Nw
                    
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                           4 8271 NWAYS ETHERNET LAN SWITCH ATM OC-3C MODULE QUICK REFERENCE GUIDE : Troubleshooting Table 1   Troubleshooting The most likely error at start-up time is a problem  1Is the Link Yes Ensure that the port is turned on  with the physical connection. Use Table 1 to iden- Status LED OFF? (enabled) at both ends of the link. tify any problems you encounter after installation. If  you cannot resolve the problem using the table,  You may need to reverse the Transmit  and Receive connectors at one 
                    
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                        Menu Map 5 Menu Map The local management menu and screen structure  is shown in Figure 4. ATM specific screens are  shaded gray on the map. Figure 4   ATM Module Screen Map                                                                                                                                                                                                                                                                                                                                        
                    
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                        6 8271 NWAYS ETHERNET LAN SWITCH ATM OC-3C MODULE QUICK REFERENCE GUIDE